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R1230D331B-TR DC/DC Step-Down Converting PMIC 3.3V SON-8 marking A33B Step-Down Converter
| 控制方式 MODE | pwm/vfm |
| 输入电压VIN Input Voltage | 2.3~5.5V |
| 输出电压VOUT Output Voltage | 3.3V |
| 输出电流IOUT Output Current | |
| 震荡频率FOSC Oscillation Frequency | 800KHZ |
| 内置FET Built-in FET | PMOS/NMOS |
| Description & Applications | PWM/VFM step-down DC/DC converter with Synchronous Rectifier • Built-in Driver ON Resistance P-channel 0.35Ω, N-channel 0.45Ω (at VIN=3V) • Built-in Soft-start Function (TYP. 1.5ms), and Latch-type Protection Function (Delay Time; TYP. 1.5ms) • Two choices of Oscillator Frequency 500kHz, 800kHz • PWM/VFM alternative with MODE pin PWM operation; MODE pin at “L”, •VFM operation; MODE pin at “H” High Efficiency TYP. 90% Output Voltage Stepwise Setting with a step of 0.1V in the range of 1.2V ∼ 4.0V(XX1A/B Type) or adjustable in the range of 0.8V to VIN(001C/D Type) • High Accuracy Output Voltage ±2.0%(XX1A/B Type) • Package • • • • • SON8 (Max height 0.9mm, thin type) • Power source for portable equipment. |
| 描述与应用 | PWM/ VFM降压同步整流DC/ DC转换器 •内置驱动器导通电阻0.35Ω，P沟道N沟道0.45Ω（VIN= 3V） •内置软启动功能（典型值1.5ms的），锁存型保护功能（延时; TYP。为1.5ms） •选择的振荡器频率500kHz，800kHz的 •PWM/ VFM替代MODE引脚PWM操作; MODE引脚在“L” •衡工量值式操作; MODE引脚在“H” 高效率TYP。 90％的 输出电压逐步设置每步0.1V的范围1.2V〜4.0V（XX1A/ B型） 或可调范围为0.8V至VIN（001C/ D型） •高精度输出电压±2.0％（XX1A/ B型） •包装•••••SON8（最大高度0.9毫米的，超薄型） •用于便携式设备的电源。 |
